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921.
Maternal perinatal risk factors and child abuse   总被引:1,自引:0,他引:1  
A retrospective matched pair study was designed to compare maternal perinatal factors such as abnormal pregnancy history and labor and delivery experience in families who subsequently were reported as physically abusive to one or more of their children as compared to non-abusive families. The study population consisted of the mothers of 532 children reported to the Baltimore (Maryland) Department of Social Services as physically abused during the years 1975-77. The comparison group was handmatched to the study group from State of Maryland birth certificates on the basis of the abused child's birth year and sex, maternal race, education and hospital of delivery. The study population was 67% black with a mean maternal education of 10.5 completed years. The abused children were 59% male with 48% less than 2 years of age. Results indicated that selected medical definitions of abnormal pregnancy, labor and delivery did not identify families at differential risk of maltreatment. However, mothers in maltreating families were younger, had shorter birth intervals, less prenatal care and were significantly more likely to have had a stillbirth or reported abortion or a prior child death. Study limitations are addressed as are suggestions for future research.  相似文献   
922.
Researchers and policy-makers have recognized the importance of including and promoting socioscientific argumentation in science education worldwide. The Swedish curriculum focuses more than ever on socioscientific issues (SSI) as well. However, teaching socioscientific argumentation is not an easy task for science teachers and one of the more distinguished difficulties is the assessment of students’ performance. In this study, we investigate and compare how science and Swedish language teachers, participating in an SSI-driven project, assessed students’ written argumentation about global warming. Swedish language teachers have a long history of teaching and assessing argumentation and therefore it was of interest to identify possible gaps between the two groups of teachers’ assessment practices. The results showed that the science teachers focused on students’ content knowledge within their subjects, whereas the Swedish language teachers included students’ abilities to select and use content knowledge from reliable reference resources, the structure of the argumentation and the form of language used. Since the Swedish language teachers’ assessment correlated more with previous research about quality in socioscientific argumentation, we suggest that a closer co-operation between the two groups could be beneficial in terms of enhancing the quality of assessment. Moreover, SSI teaching and learning as well as assessment of socioscientific argumentation ought to be included in teacher training programs for both pre- and in-service science teachers.  相似文献   
923.
An important touchstone of distance education has been to contribute to the development of individual learners whatever their life circumstances. The first half of the article provides an overview of this contribution and of the understanding and awareness that has been developed about distance learners in their individual learning contexts. The overview is based around five themes: access to education, adjustment to new learning environments, individual development, knowledge and awareness of learners in context, and the importance of understanding the learner’s perspective of distance education. In the latter part of the article it is argued that the way ahead for distance education requires attention to more than technological approaches to learning, and that the field is well placed to provide an informed critique of current trends and developments, to focus on the student experience, and to contribute to learner development and practitioner development.  相似文献   
924.
In the modern organisation the effective management of data, information, content and knowledge is crucial for enhancing competitiveness and growth. There is a profound need for all levels of business management to understand the risks, challenges and business benefit of managing these ‘Information Assets’. This paper describes the results of qualitative empirical research to investigate the roles and responsibilities of Executive Boards to ensure effective management and governance of Information Assets. Personal interviews were conducted with Board members in Australia and the United States. The results indicated that Boards often fail to fully appreciate the strategic value of Information Assets and do not understand the organisational risk and untapped business benefit resulting from ineffective Information Asset Management practices. This paper suggests that Executive Boards should be engaged in discussions about Information Management and fulfil strategic-, control- and institutional roles to guide the way Information Assets are managed and deployed.  相似文献   
925.
租房记     
五十三年前,本文作者James A.White Sr.是一名美国空军,但作为一名非裔美国人,他几经周折才终于得以在其驻地租下一间房子,他以幽默生动的方式向我们讲述了这段经历,揭露了当时美国严重的种族歧视现象。然而,时至今日,这种歧视依然以一些隐晦的形式存在着……  相似文献   
926.
Assessment and feedback devices have been regularly used in technique training in high-performance sports. Biomechanical analysis is mainly visually based and so can exclude athletes with visual impairments. The aim of this study was to examine the effects of auditory feedback on mean boat speed during on-water training of visually impaired athletes. The German National Para-Rowing team (six athletes, mean ± s, age 34.8 ± 10.6 years, body mass 76.5 ± 13.5 kg, stature 179.3 ± 8.6 cm) participated in the study. Kinematics included boat acceleration and distance travelled, collected with Sofirow at two intensities of training. The boat acceleration-time traces were converted online into acoustic feedback and presented via speakers during rowing (sections with and without alternately). Repeated-measures within-participant factorial ANOVA showed greater boat speed with acoustic feedback than baseline (0.08 ± 0.01 m·s?1). The time structure of rowing cycles was improved (extended time of positive acceleration). Questioning of athletes showed acoustic feedback to be a supportive training aid as it provided important functional information about the boat motion independent of vision. It gave access for visually impaired athletes to biomechanical analysis via auditory information. The concept for adaptive athletes has been successfully integrated into the preparation for the Para-Rowing World Championships and Paralympics.  相似文献   
927.
928.
This study examined the extent to which 205 sibling dyads influenced each other during conflict. Data were collected between 2013 to 2015. The sample included 5.9% Black, 15.1% South Asian, 15.1% East Asian, and 63.8% White children. Older siblings were between 7–13 years old (Female = 109) and younger siblings were 5–9 years old (Female = 99). Siblings' conflict resolution was analyzed using dynamic structural equation modeling. Modeling fluctuations in moment-to-moment data (20-s intervals) allowed for a close approximation of causal influence. Older and younger siblings were found to influence one another. Younger sisters were more constructive than younger brothers, especially in sister–sister dyads. Sibling age gap predicted inertia in older siblings. Socialization processes within sibling relationships are discussed.  相似文献   
929.
Educational Research for Policy and Practice - A paradox concerning age exists in early childhood education (ECE) across many countries today, evident in the literature, curriculum, policy,...  相似文献   
930.
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